Cass County, MO Building Safety: Plumbing Permits (2026)
Key Facts
- Adopted code
- International Plumbing Code, 2006 Edition
- Permit issuance fee
- $85.00
- Supplemental permit fee
- $37.50
- Minimum sewer depth
- 12 inches below grade
- Enforcing agency
- Building Codes Department
Summary
Unincorporated Cass County requires a plumbing permit under the county's adopted International Plumbing Code, 2006 Edition. The Building Codes Department administers permits, which cost $85.00 to issue, and the county's own amendment sets a 12-inch minimum sewer burial depth.
A. A certain document, three (3) copies of which one (1) copy is on file in the office of the Cass County Clerk and the remaining two (2) copies may be maintained in the Building Codes office of the County of Cass, Missouri, being marked and designated as the International Plumbing Code, 2006 Edition, including Appendix Chapters B, E and F, as published by the International Code Council, Inc., be and is herby adopted as the Building Code of the County of Cass in the State of Missouri for the control of building and structures as herein provided; and each and all of the regulations, provisions, penalties, conditions and terms of said Building Code are hereby referred to, adopted and made a part hereof, as if fully set out in this Article, with the additions, insertions, deletions and changes, if any, prescribed in Subsection (B) hereof and Section 500.020 of this Chapter. ... IPC Section 305.6.1. Sewer depth. Amend as follows: Building sewers shall be a minimum of 12 inches (305 mm) below grade.
Full Breakdown
070 adopts the International Plumbing Code, 2006 Edition, including Appendix Chapters B, E and F, as the county's plumbing code for unincorporated Cass County, with the code's regulations, provisions, penalties, conditions and terms made part of county law. 3 bars connecting storm water, sump pumps, foundation drains, yard drains or gutter downspouts to the sanitary sewer system. 75. The adoption took effect December 30, 2008 under Ord. No. 08-06 § 7.
Violations & Fines
Cass County Code § 100.210, the county's general penalty section, governs because Chapter 500 sets no plumbing-specific fine: violating an adopted code provision is punishable by a civil penalty of up to $1,000.00, with every day a violation continues counted as a separate offense. Work performed without a permit or contrary to the amended sewer-depth and backflow requirements can trigger a stop-work order from the Building Codes Department.
Frequently Asked Questions
Do I need a permit for plumbing work in unincorporated Cass County?
How deep must a building sewer be buried in Cass County?
How much does a plumbing permit cost in Cass County?
Can I connect a sump pump or downspout to the sanitary sewer in Cass County?
Sources & Official References
Other rules in Cass County
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